拍品描述： 1868 Shield Nickel. Proof-66 Ultra Cameo (NGC).Enchanting brilliant fields support softly frosted, fully struck devices, the interplay between these two features explaining the coveted -- and rare -- Ultra Cameo designation from NGC. An untoned, exceptionally well preserved Gem that ranks among the finest certified survivors of this third-year Proof Shield nickel issue. From an unknown mintage that Q. David Bowers (2006) estimates at 750 to 1,000 coins.